True
Drastic biological events may happen such as a volcano eruption or a hurricane. It can also happen overtime. For example, a species dying off due to lack of food and/or global warming.
Living things in the Biosphere.
without atoms, the chemical elements wouldn't exist. then, molecules, then proteins, then life itself. basically we're made out of atoms just like everything else.
1) bottom
2) top
The female cones are located at the top of the tree while make cones are at the bottom. The placement of cones is important in reproduction. Because cross-pollination between trees is desired. Wind will bring pollen from the male cone to female cones from other trees.
